Process for continuous extracting nimbic fat and nimbin

The present invention provides a continuous method of extracting azadirachtin and neem oil from neem plant, characterized by using a supercritical fluid into the feed at a pressure of 110-250bar, under the conditions of a temperature of 30-50 ℃ Extraction neem oil; and a pressure of 130-200bar, the temperature of the raw material to extract azadirachtin same conditions 30-40 ℃. Its simple equipment, process is simplified, simple, safe, non-toxic, low running cost, low production costs, fast extraction speed, easy to separate, with high efficiency, and does not destroy the chemical structure of the active ingredient, the biologically active composition min Retention full, high yield, especially suitable for industrial continuous separation process difficult to separate conventional solvent neem oil, azadirachtin activity and effective set of components.